‘Onto Deposit’ mining activities in Dompu Regency, West Nusa Tenggara, have significant impacts on the surrounding environment, especially in the form of land degradation, water pollution, and disturbances to biodiversity. This study aims to identify the main environmental impacts of these mining activities and formulate solutions based on the principles of sustainable development. The method used is a qualitative study through field observations, interviews with local residents, and a review of environmental policy literature. The results of the study indicate that in addition to groundwater and river pollution, forest damage and social conflict are also major issues. The solutions offered include the application of reclamation technology, the use of environmentally friendly mining systems, and community involvement in monitoring and supervision of the mine. This study recommends the establishment of a multi-stakeholder forum to bridge the interests of companies, governments, and communities in order to maintain a balance between resource exploration and environmental sustainability.
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